Bottle-cap and the like.



J. PoPP.

BOTTLE CAP AND THE LIKE.

APPLICATION FILED MAY 25, I915.

l,%90,655. Patented Jan. 7,1919.

WITNESSES 1 llVI/E/VTOR W I Jon/4s PUFF ATTORNEYS SATES PATENT OFFICE.

JONAS POPP, OF BROOKLYN, NEW YORK, ASSIGNOR OF ONE-HALF TO DAGMAR BAUER,

' OF NEW YORK, N; Y.

BOTTLE-CAP AND THE LIKE.

Application filed May 25, 1915.

To all whom it may concern:

Be it known that I, JoNAs Porr, a citizen of the United States, and a residentof the borough of Brooklyn, county of Kings, city and State of New York, have invented a. certain new and useful Improvement in Bottle-Caps and the like, of which the fol lowing is a specification.

My invention relates to bottle caps and the like of the kind which are employed to effect a tight seal upon bottles or other receptacles and which usually include a packing for effecting an air-ti ht closure. My improvement has for its ob ect the provision of a cap of this type which may be easily constructed and readily applied and which in its operative position on the bottle or other receptacle exerts a resilient tension.

By the use of such a cap in cases where the resiliency is suificiently strong a closure of great efliciency is secured owlng to thefact that the packing is maintained in a properly compressed condition even though said packing may not have possessed or may have lost its original elasticity. This property of the cap makes it possible to dispense with the expensive and frequently 'obj ec-,

tionable packings of the cork type. My improvement will be fully described hereinafter and the features of novelty will be pointed out in the appended claim.

An example of my improvement is shown in the accompanying drawings in which Figure 1 is an exterior side view of my im-. proved cap; Fig. 2 is a cross-section thereof on the line 2-2 of Fig. 3; Fig. 3 is an inverted plan view; Fig. 4; illustrates the cap in section in its initial position on the bottle; Fig. 5 is a similar view showing the cap fully connected with said bottle; and Fig. 6 is a side view of the bottle neck with the cap applied thereto.

As shown in the drawings the cap which is preferably constructed of a suitable metal which should have inherently resilient properties, comprises a disk 10 from which depends a peripheral flange 11 terminat ng in a series of fingers 15 each provided with an outwardly projecting ridge or bead 12 preferably formed by bending the metal upon itself. Below the ridge or bead 12 the fingers 15 preferably flare outwardly in the initial condition of the cap as shown at 13, a curved surface being in this manner provided which in combination with a shoulder Specification of batters Patent.

Patented Jan. 7, 1919.

Serial No. 30,237.

intervals throughout the circumference of the flange 11 whereby the fingers 15 are formed at the free edge of said flange as illustrated in Figs. 1 and 2. The packing is indicated by the numeral 17 and may be either a ring or other suitable or convenient form.

In applying the cap to a bottle such as 16 the cap with its packing is first placed upon the mouth thereof. The positioning of the cap and packing on the bottle may be accomplished manually or by means of suitabl mechanism as desired and this positioning may be accomplished by the plunger hereinafter referred to. The cap in its first applied position is shown in Fig. 4. After having been brought into proper relation with the bottle the combined bottle, cap and packing are brought into operative relation with a plunger 19 or the like which is suitably operated, preferably in a vertical direction, although the plunger may be stationary and the bottle moved into it. This plunger 19 preferably surrounds the'flange a pivot thus causing the fingers 15 to project beneath and bringing the curved surfaces thereof into contact with the bead or annular shoulder 20 of the bottle neck 18, A continued pressure or downward motion of the plunger 19 will finally straighten out the upper half of said bead or ridge 12 and cause the free ends of said fingers 15 or more specifically the curved surfaces thereof to move inwardly along the head 20 of the bottle neck 18 whereby the angle 1) is'opened. The cap finally assumes the position illustrated in Fig. 5. As the fingers 15 move along the bead 20 and the angle 1) is opened as described and the curved surfaces of said fingers in combination with the shoulder exert a clamping action whereby the disk is drawn toward the packing 17 which as a resultis compressed between said disk and the neck 18 While the cap structure as a whole is at the same time placed under a continuing resilient tension. In addition to this, by constructing the fingers with curved surfaces as described, the said fingers ride freely inward upon the shoulder 20 regardless of any surface inequalities which may be present thereon, thus facilitating the application of the cap to the receptacle. In its final position on the bottle, the said cap is therefore locked thereon under said resilient tension and thereafter continues to exert such tensionwhereby the packing 17 is maintained in a properly compressed condition even though said packing itself may initially not have been elastic or have lost its original elasticity. The present arrangement thus permits the use of a packing materialof any kind such as for instance par- .atfin paper and the like and does away with the necessity for using expensive cork or other elastic packings which are now necessary and at the same time provides a seal having a maximum of eificiency and merit and of extreme simplicity. In other words after the cap has been secured upon the bottle, the latter is hermetically sealed by the packing against the entrance of air or moisture and against the egress of any of the contents whereby said contents are effectively protected against injury or dein combination with jars or other recepta cles as well as with bottles as illustrated.

Various changes in the specific form shown and describedmay be made within the scope of the claim without departing from the spirit of my invention.

I claim:

The combination of a receptacle, a shoulder thereon extending at substantially right anglesto the major axis of said receptacle, a closure comprising a sealing disk, a packing between said sealingdisk and the open end of said receptacle, a continuous peripheral flange depending from said disk and surrounding said receptacle, an outwardly extending circumferential bead carried by said flange at its lower edge and formed by bending the closure material upon itself, said bead being located above said shoulder when the closure is initially placed in position upon said receptacle, and a series of independent gripping fingers, inwardly curved in the normal positions and normally depending from said bead, said fingers having no portion extendingupwardly beyond the head, the latter being straightened out and pivotally moved on the lower edge of the peripheral flange whereby said gripping fingers are caused to project in directions at substantially right angles to said flange and shifted in their entirety-beneath and into contact with said annular shoulder, the latter being'tangential to the curves of said fingers whereby said closure is secured in operative position and said packing is compressed beneath the disk and receptacle under a continuing resilient tens1on.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

' JONAS POPP. Witnesses W. J. Romeo, MAUD A. CATHCART. 

